{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0xa2c90fc26c6c26d8981428d524946c038484326d0592911e00eb6eb3070afdcd",
    "signature": "0x118da6b593b8203f38f21ad46923c362c38d2af90c7f3c5de946e2d42f7032152a6dbec6aa4adf161dc353f23eef9500c99e0c54d391a06f68f03236c4fcf98b1b",
    "signer": "0x8d9D00A94c3B1C9992e3CA4386AbBC6345B2E876",
    "userId": "396658415"
  }
}